Levels of Covid infection in Scotland could be "substantially higher" than the one in 30 people who are estimated to have the virus, an Edinburgh expert has warned.
Professor Rowland Kao said the lack of surveillance monitoring meant infection levels were unknown. This comes just days after Professor Linda Bauld warned the country is experiencing a 'new wave' of the virus.
The Office for National Statistics (ONS) has estimated that one in 30 people in Scotland had coronavirus in the week ending June 10 - the second week in a row that infection numbers have risen.
